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andrey2020 [161]
3 years ago
15

Which of the following statements are false: Some veins have valves that aid in the one-way propagation of blood. Some veins dep

end on the activity of skeletal muscles to conduct blood. The endothelial lining of veins is smooth. Veins always conduct blood towards the heart. Veins only conduct oxygen poor blood.
Biology
1 answer:
Reptile [31]3 years ago
8 0
Veins don’t always conduct oxygen poor blood. The pulmonary vein brings reoxygenated blood from the lungs into the heart
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The diagram below shows four coastline locations on Earth with respect to the moon at a given time.
WINSTONCH [101]
The answer is both A and C. The coastlines that ideally experience high tides are places that are much nearer or opposite against the moon. The reason behind this is that the moon has its own gravitational field that pulls the earth towards itself. This makes high tides or low tides. Basically, there are two high tides and two low tides occuring at the same time. This is due to the varying forces that the moon does depending on the water's position on earth.
5 0
3 years ago
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Is the statement "I joined the science club to make my parents happy" intrinsic motivation
Bess [88]
Depends on whether the person is talking to themselves, or someone else.
If they are talking to themselves, it is indeed intrinsic motivation, as they are convincing themselves they are also happy and motivated to join the science club as it makes their parents happy.
If they are talking to someone else, it would not be intrinsic motivation. This is because they are merely telling someone that they're doing something to make their parents happy.
As it is a statement, on the whole I would say, no. It is not intrinsic motivation.
4 0
3 years ago
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PLEASE I NEED THIS ASAP If you had a cell that was cube-shaped with a side length of 20µm, calculate the surface to volume ratio
weeeeeb [17]

Answer:

Ratio = 3\times 10^5

Explanation:

Side of a cube, a = 20 µm

a=20\times 10^{-6}\ m

The surface area of a cube, A = 6a² (a is side of the cube)

The volume of a cube, V = a³

The ratio of the surface to volume ratio of the cell will be given by :

R=\dfrac{6a^2}{a^3}\\\\R=\dfrac{6}{a}\\\\R=\dfrac{6}{20\times 10^{-6}}\\\\R=3\times 10^5

So, the ratio of the surface to volume ratio of the cell 3\times 10^5.

6 0
3 years ago
Evidence for evolution how are dna and comparative anatomy used to show relatedness
Svetach [21]

The genetic material <span>that children inherit from their parents </span>and the physical similarities of children to their parents are the evidence for evolution. Comparative anatomy is used to show relatedness from generation to generation by having similar DNA sequences or patterns and traits.

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What does the word pattern mean in the paragraphs 5 and 6 of the story from coyote and the stars.
Ymorist [56]

Answer:

Find answer here

Explanation:

Responses.pdf

7 0
2 years ago
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